The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1976
Filed:
Jul. 12, 1974
Applicant:
Inventors:
Klaus Prezewowsky, Berlin, DT;
Henry Laurent, Berlin, DT;
Helmut Hofmeister, Berlin, DT;
Rudolf Wiechert, Berlin, DT;
Friedmund Neumann, Berlin, DT;
Yukishige Nishino, Berlin, DT;
Assignee:
Schering Aktiengesellschaft, Berlin and Bergkamen, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2602395 ; 2602 / ; 2602 / ; 2603974 ; 2603975 ;
Abstract
1,3-Dihydroxy-8.alpha.-estratrienes of the formula ##SPC1## Wherein R is lower-alkyl and --A--B is ##SPC2## Wherein R' is a saturated or unsaturated hydrocarbon group and R' is lower-alkyl, aralkyl or phenyl, and the esters and ethers thereof, possess strong vaginotropic but only weak utertropic activity and are useful in the treatment of estrogenic deficiency conditions where uteral effects are not desired.